/**
 * 是否单数
 * @param {*} item 
 * @param {*} sliceNum 
 * @returns 
 */
export const isSingleNumber = (item, sliceNum = 4) => {
  const nums = item.lotteryDrawResult.split(' ').slice(0, sliceNum).map(item => Number(item))
  const numbersSet = new Set(nums);
  return numbersSet.size === sliceNum
}